Objects in the image:
category: traffic light
category: car
category: truck
category: truck
category: car
category: traffic light
category: traffic light
category: traffic light

Guessing-game dialogue about one of the objects:
q: is signal?
a: Yes
q: traffic light?
a: Yes
q: with green light on?
a: No
q: red light on facing left?
a: No
q: red light on facing right?
a: No
q: the one near the green light on?
a: Yes
q: is in the back ground?
a: No